include <bits/stdc++.h>
using namespace std;
int main() {
int n, ans = 0;
cin >> n;
for (int i = 1; i <= n; i++) {
int m;
cin >> m;
if (m % 10 - m / 1000 - m / 100 % 10 - m / 10 % 10 > 0) {
ans++;
}
}
cout << ans;
return 0;
}
using namespace std;
int main() {
int n, ans = 0;
cin >> n;
for (int i = 1; i <= n; i++) {
int m;
cin >> m;
if (m % 10 - m / 1000 - m / 100 % 10 - m / 10 % 10 > 0) {
ans++;
}
}
cout << ans;
return 0;
}
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